"""
@author:   chende
识别验证码,可以对知网验证码识别
参考：https://mp.weixin.qq.com/s?__biz=MzU2ODYzNTkwMg==&mid=2247484292&idx=1&sn=1d948f56e57a6586f11aabc0f0f6b3af&scene=19#wechat_redirect

windows 10环境下安装Tesseract-OCR与python集成
https://blog.csdn.net/u010454030/article/details/80515501
"""
